diff --git a/Magnetodynamics/electromagnet.pro b/Magnetodynamics/electromagnet.pro
index 5c9ac8031e3e050d0affe5372edafb5deb9157f2..fedb4233add4a27fcffa3538b2f05f0f670ba4f5 100644
--- a/Magnetodynamics/electromagnet.pro
+++ b/Magnetodynamics/electromagnet.pro
@@ -122,7 +122,7 @@ Function {
     nu[ Core ]  = 1. / (murCore * mu0);
   EndIf
 
-  sigma[ Core ] = 1e6 / 1000;
+  sigma[ Core ] = 1e6 / 100;
   sigma[ Ind ] = 5e7;
 
   Ns[ Ind ] = 1000 ; // number of turns in coil